真空 ›› 2023, Vol. 60 ›› Issue (2): 51-56.doi: 10.13385/j.cnki.vacuum.2023.02.09
李琳1,2, 孟献才3, 元京升1,2, 毕海林4, 左桂忠1, 胡建生1
LI Lin1,2, MENG Xian-cai3, YUAN Jing-sheng1,2, BI Hai-lin4, ZUO Gui-zhong1, HU Jian-sheng1
摘要： 锂化壁处理/液态锂第一壁可为托卡马克装置提供良好壁条件,但存在燃料滞留问题,为解决这一问题,需进一步研究氢同位素在液态锂中的脱附特性。本文设计了液态锂中气体吸附/脱附系统,开展了氘气在液态锂中的吸附实验,并分析了其脱附过程,通过采用微调阀调整进气速率的方式标定不同氘气分压下的系统抽速,计算了热脱附过程中气体的抽除量。结果表明,氘气在液态锂中的脱附峰温度在481℃附近,脱附的氘气仅有约36%被抽气系统抽除,剩余部分被壁面冷凝的锂重新吸附。该研究可为深入分析氘在液态锂中的脱附行为奠定良好基础,为未来解决液态锂中的燃料回收问题提供技术支持。
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